AMX DXF-RX-MMD, Instruction Manual

Page: 119 / 148

Appendix B – Telnet (Terminal) Commands
119 Instruction Manual – DXLink Fiber Transmitters and Receivers
Master Connection Modes
The mode of communication used for connection to the Master is specified via the
SET CONNECTION
Telnet command
(see page 112).
The connection mode setting options are AUTO, TCP URL, UDP URL, or NDP (default) as described below.

AUTO – This mode utilizes TCP communication. It looks for a matching System Number and attempts to
come online with the first Master it sees with that System Number.

TCP URL – TCP; the Master is specified via URL.

UDP URL – UDP; the Master is specified via URL.

NDP – UDP; this mode utilizes the NDP binding process to assign the
DXLink Fiber
unit (the physical
device) to a Master (or Virtual Master) via NetLinx Studio. Once bound, communications are conducted
via UDP.
Note: In URL modes, the Master can use either an IP address or a DNS name.
Guidelines
UDP mode is recommended for the following types of installations:

Small-to-medium residential and corporate installations on a single subnet

Segmented control network installations (control network is a separate switching domain and subnet from
other network equipment)

Installations with the total of NetLinx / ICSNET devices on a single Master exceeding 128
TCP mode is recommended for installations where (a) the switching domain of the network is subject to “ bursty ” traffic
or heavy streaming activity (>20 Mbps consumption by streaming) and where (b) the total number of NetLinx / ICSNET
devices on a single Master is less than 128.
TCP vs. UDP

TCP – Protocol has a built-in retry mechanism.

UDP – Protocol does not have a built-in retry mechanism, but consumes fewer resources on the Master.
AMX’s UDP implementation of NetLinx employs a retry mechanism to provide the reliability of TCP with
the resource efficiency of UDP.
Telnet Commands (continued)
XG Note: This command applies only to the Receiver.
Displays information about the XG fiber link status control.
Usage:
xg info Shows XG block information
xg stats Shows XG block statistics
xg stats on 5000 Enables periodic logging of stats every 5 seconds
(view with the 'tail' command)
xg stats off Disables periodic logging of stats
xg shortstats Shows XG brief statistics
xg dump Shows hex dump of XG block registers
xg reset Resets the XG FPGA
xg reboot-remote Executes a hard reboot of the Transmitter
(only for Duplex RX to TX in Bidirectional Mode
directly connected)
xg reboot-local Executes a hard reboot of the Receiver
XG STATS Note: This command applies only to the Receiver.
Shows the XG block statistics.